| Boulder to Mill Creek East (Washington) | 997.38 mi (1,605.12 km) |
| Boulder to Mill Valley (California) | 938.72 mi (1,510.72 km) |
| Boulder to Millbrae (California) | 936.86 mi (1,507.73 km) |
| Boulder to Millbrook (Alabama) | 1,169.86 mi (1,882.71 km) |
| Boulder to Millcreek (Utah) | 349.22 mi (562.01 km) |
| Boulder to Milledgeville (Georgia) | 1,307.95 mi (2,104.94 km) |
| Boulder to Miller Place (New York) | 1,687.22 mi (2,715.32 km) |
| Boulder to Millington (Tennessee) | 898.44 mi (1,445.89 km) |
| Boulder to Millville (New Jersey) | 1,597.95 mi (2,571.65 km) |
| Boulder to Milpitas (California) | 913.15 mi (1,469.57 km) |
| Boulder to Milton (Georgia) | 1,220.29 mi (1,963.86 km) |
| Boulder to Milwaukee (Wisconsin) | 916.38 mi (1,474.77 km) |
| Boulder to Milwaukie (Oregon) | 955.22 mi (1,537.27 km) |
| Boulder to Minden (Louisiana) | 839.13 mi (1,350.45 km) |
| Boulder to Mineola (New York) | 1,655.45 mi (2,664.19 km) |
